EP 3885472 A1 20210929 - HYDROGEN PRODUCTION METHOD
Title (en)
HYDROGEN PRODUCTION METHOD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON WASSERSTOFF
Title (fr)
PROCÉDÉ DE PRODUCTION D'HYDROGÈNE
Publication
Application
Priority
- JP 2018216503 A 20181119
- JP 2019042050 W 20191025
Abstract (en)
A hydrogen production method of the present embodiment is a hydrogen production method for producing hydrogen through electrolysis of water containing alkali by a water electrolysis system comprising an electrolyzer and a power supply for supplying an electric power to the electrolyzer. The method includes supplying the electric power to the electrolyzer such that an electric current density is 10 Am<sup>-2</sup> or more and less than 1500 Am<sup>-2</sup> in terms of a projected area of a membrane, and an integral value of the electric current density applied is 2000 Ch<sup>-1</sup>m<sup>-2</sup> or more and 54000 kCh<sup>-1</sup>m<sup>-2</sup> or less, when the electric power supplied to the electrolyzer decreases.
IPC 8 full level
C25B 15/02 (2021.01)
CPC (source: EP)
C25B 1/04 (2013.01); C25B 9/77 (2021.01); C25B 15/02 (2013.01); C25B 15/023 (2021.01); Y02E 60/36 (2013.01); Y02P 20/133 (2015.11)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3885472 A1 20210929; EP 3885472 A4 20220105; AU 2019385031 A1 20210527; AU 2019385031 B2 20220804; JP 7170061 B2 20221111; JP WO2020105369 A1 20210927; WO 2020105369 A1 20200528
DOCDB simple family (application)
EP 19887541 A 20191025; AU 2019385031 A 20191025; JP 2019042050 W 20191025; JP 2020558199 A 20191025